@book{4922,
	author = {Greenbaum, Sidney. and Quirk, Randolph.},
	title = {A student's grammar of the english language /},
	publisher = {Longman,},
	year = {1990.},
	address = {[S.l.] :},
	edition = {Subsequent ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0582059712/chopaconline-20}
}